To turn off an electrical appliance or device (esp. Computers or Tv's) by cutting its power; either by pulling the plug out of the socket or flipping the switch, instead of following standard procudure (running Shutdown, pushing the power button). Nuking can happen accidentally or deliberatly.

1.to cook in the microwave (which is a great way to dry the dog, try it!)
2.a nuclear explosive
A.a means of keeping the japanese in line
B.a way to turn the Middle East into a giant glass parking lot.

To cook something in a microwave oven. "Neuked" to have been cooked in the microwave. Neuking-the act of being cooked in the microwave.(Note the spelling change when the word becomes a verb or adjective)
Derived from the common belief that Microwaves were like Neuclear Power and had supernatural properties that could bring Frozen meals to life in a matter of seconds.